eval(readFile('Compiled_JavaScript_Compiler'))

/*
   Support having the unary inversion operator ("!") immediately before
   the member name in a member access expression.

      x.y.!isEmpty()  -->  !x.y.isEmpty()
*/

ometa BangJSParser <: JSParser {
   primExpr = primExpr:p
                 ( "." "!" "name":m "(" listOf(#expr, ','):as ")" -> [`unop, "!", [`send, m, p].concat(as)]
                 | "." "!" "name":f                               -> [`unop, "!", [`getp, [`string, f], p]]
                 )
              | super("primExpr")
}

i = "getManager('asdf').employees.!isEmpty()"
a = BangJSParser.matchAll(i, "topLevel")
b = JSTranslator.match(a, "trans")

// a == [begin, [unop, !, [send, isEmpty, [getp, [string, employees], [call, [get, getManager], [string, asdf]]]]]]
// b == (!getManager("asdf")["employees"].isEmpty())
 undefined undefined undefined